Home / 39,874.31-59,793.68-21,150.08

Finding the Fourth Proportional to 39,874.31, 59,793.68 and 21,150.08

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Solution

The fourth proportional to 39,874.31, 59,793.68 and 21,150.08 is: 31,715.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,874.31 : 59,793.68 = 21,150.08 : x
  2. Step 2: Convert to fraction form
    39,874.31/59,793.68 = 21,150.08/x
  3. Step 3: Cross multiply
    39,874.31x = 59,793.68 × 21,150.08
  4. Step 4: Simplify right side
    39,874.31x = 1,264,641,168.37
  5. Step 5: Solve for x
    x = 1,264,641,168.37/39,874.31
  6. Step 6: Final answer
    x = 31,715.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.